Self-similar growth of Bose stars
| Autor: | Dmitriev, A. S., Levkov, D. G., Panin, A. G., Tkachev, I. I. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We analytically solve the problem of Bose star growth in the bath of gravitationally interacting particles. We find that after nucleation of this object the bath is described by a self-similar solution of kinetic equation. Together with the conservation laws, this fixes mass evolution of the Bose star. Our theory explains, in particular, the slowdown of the star growth at a certain "core-halo" mass, but also predicts formation of heavier and lighter objects in magistral dark matter models. The developed "adiabatic" approach to self-similarity may be of interest for kinetic theory in general. Comment: 4 pages, 2 figures and 6 pages, 5 figures of the Supplemental Material; journal version |
| Databáze: | arXiv |
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